Purpose: When the workflow changed, resource scheduling optimization in the process of the current running instance migration has become a hot issue in current workflow flexible research; purpose of the article is to investigate the resource scheduling problem of workflow multi-instance...

Purpose: Non-financial corporate debt is one of the important sources of systematic risk in the real economy. Assessing a measure of systematic risk in corporation debt is currently a key challenge. In this regard, we propose a two-tier risk contagion networks model....

Background In China, public medical insurance has expanded rapidly in the past 20 years. Many studies have discussed the benefts of medical insurance in improving residents' health and fnancial stability, and increasing the utilization of medical services. Less attention is paid to the efect of...

The current international society has entered an era of large-scale power transfer. Government interests have gradually transferred from national strength to national influence. As such, how to quantitatively present the fuzzy geopolitical influence (<i>i.e</i>., geo-influence) has attracted greater...